DETERMINATION OF
CONVEYANCE LOSS OF IRRIGATION WATER
THROUGH EARTHEN
CHANNEL
Author: Rintu Sen*
*Corresponding author;
E-mail:
sen.ridika@yahoo.com
Abstract
The
conveyance efficiency in irrigation system is poor due to seepage, percolation,
cracking, and damaging of the earth channel. Therefore purpose of this study
was to determine the conveyance losses of irrigation water through earthen
channel. A 50 ft long and straight earthen channel was selected for this
purpose. It was modified by excavation and compaction and also by maintaining
suitable bed slope and side slopes. In this experiment discharge was measured
by Inflow-Outflow method using cut-throat flumes. Results revealed that conveyance
losses were 40.01%, 35.42%, 32.81% and 4% under natural condition, compacting
the sides and bottom, using lining material of cow dung and rice husk and
polythene sheet, respectively. It may be inferred that the mixture of cow dung
and rice husk could be used as lining material because it is easily available,
low cost and even unskilled labor can make it.
Key
words: Conveyance loss, earthen
channel, Cutthroat flume
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Return Volume: Journal of Experimental Biosciences 6(2): July 2015
